Problem with Rigid Body joint (not sticking in place)

Hello,

I attached wheels to some axles via Rigid Body joints in order to simulate the wheel movement.
It works quite well but the wheels act like they have springs, which they shouldn’t.
Sometimes it even happens that the wheel just falls of the axle :smiley: It is funny to see but it is absolutely not intended.
Also when jumping off the map the wheels start to displace completely from the axle.

I made a simplified blend to demonstrate the issue. Movement works with WASD

Mountainboard1.blend (157 KB)

I hope someone knows what is causing this problems.

Greetings André